Chapter 2: PyTorch Basics : Essential for Mastering PyTorch
Abstract PyTorch is an open-source machine learning library primarily used for building and training deep learning models. Its key features and fundamental concepts include: 1. Tensors: Tensors are the fundamental data structure in PyTorch, similar to NumPy arrays but with GPU acceleration capabilities. They represent multi-dimensional arrays and are used to store data, model parameters, and intermediate computations. Operations on tensors are optimized for performance, especially on GPUs. 2. Autograd (Automatic Differentiation): PyTorch's autograd engine automatically computes gradients for all operations on tensors with requires_grad=True . This is crucial for backpropagation in neural networks, where gradients are used to update model parameters during training. It builds a dynamic computation graph, allowing for flexible model architectures and conditional computations. 3. torch.nn Module: This module provides ...